QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended March 31, 2015

or

¨

TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from
to
.

Commission File Number 001-10932

WisdomTree
Investments, Inc.

(Exact name of registrant as specified in its charter)

Delaware

13-3487784

(State or other jurisdiction of

incorporation or organization)

(IRS Employer

Identification No.)

245 Park Avenue, 35th Floor

New York, New York

10167

(Address of principal executive officers)

(Zip Code)

212-801-2080

(Registrants Telephone Number, Including Area Code)

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the
Securities Exchange Act of 1934, as amended (the Exchange Act) during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements
for the past 90 days. Yes x No ¨

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive
Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such
files). x Yes ¨ No

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer or a smaller
reporting company. See definitions of large accelerated filer, accelerated filer and smaller reporting company in Rule 12b-2 of the Exchange Act.

Large accelerated filer

x

Accelerated filer

¨

Non-accelerated filer

¨

Smaller reporting company

¨

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange
Act). Yes ¨ No x

As of April 30, 2015, there were 137,033,096 shares of the registrants Common Stock, $0.01 par value per share, outstanding (voting
shares).

This Quarterly Report on Form 10-Q contains forward-looking statements that are based on our managements belief and assumptions and on
information currently available to our management. Although we believe that the expectations reflected in these forward-looking statements are reasonable, these statements relate to future events or our future financial performance, and involve
known and unknown risks, uncertainties and other factors that may cause our actual results, levels of activity, performance or achievements to be materially different from any future results, levels of activity, performance or achievements expressed
or implied by these forward-looking statements.

In some cases, you can identify forward-looking statements by terminology such as
may, will, should, expects, intends, plans, anticipates, believes, estimates, predicts, potential,
continue or the negative of these terms or other comparable terminology. These statements are only predictions. You should not place undue reliance on forward-looking statements because they involve known and unknown risks, uncertainties
and other factors, which are, in some cases, beyond our control and which could materially affect results. Factors that may cause actual results to differ materially from current expectations include, among other things, those listed in the section
entitled Risk Factors included in our Annual Report on Form 10-K for the fiscal year ended December 31, 2014. If one or more of these risks or uncertainties occur, or if our underlying assumptions prove to be incorrect, actual
events or results may vary significantly from those implied or projected by the forward-looking statements. No forward-looking statement is a guarantee of future performance. You should read this Report and the documents that we reference in this
Report and have filed with the Securities and Exchange Commission (SEC) as exhibits to this Report, completely and with the understanding that our actual future results may be materially different from any future results expressed or
implied by these forward-looking statements.

In particular, forward-looking statements in this Report include statements about:



anticipated trends, conditions and investor sentiment in the global markets and exchange traded products, or ETPs, which include exchange traded funds, or ETFs;



anticipated levels of inflows into and outflows out of our ETPs;



our ability to deliver favorable rates of return to investors;



our ability to develop new products and services;



our ability to maintain current vendors or find new vendors to provide services to us at favorable costs;



our ability to successfully expand our business into non-U.S. markets;



timing of payment of our cash income taxes;



competition in our business; and



the effect of laws and regulations that apply to our business.

The forward-looking statements
in this Report represent our views as of the date of this Report. We anticipate that subsequent events and developments may cause our views to change. However, while we may elect to update these forward-looking statements at some point in the
future, we have no current intention of doing so except to the extent required by applicable law. Therefore, these forward-looking statements do not represent our views as of any date other than the date of this Report.

WisdomTree Investments, Inc., through its subsidiaries in the U.S., U.K., Jersey and Ireland (collectively,
WisdomTree or the Company), is an ETP sponsor and asset manager headquartered in New York. WisdomTree offers ETPs covering equity, fixed income, currency, alternative and commodity asset classes. The Company has the following
operating subsidiaries:



WisdomTree Asset Management, Inc. (WTAM) is a New York based investment adviser registered with the SEC providing investment advisory and other management services to WisdomTree Trust
(WTT) and WisdomTree exchange traded funds (ETFs).



Boost Management Limited (BML or Boost) is a Jersey based investment manager providing investment and other management services to Boost Issuer PLC (BI) and Boost ETPs.



WisdomTree Europe Limited (WisdomTree Europe) is a U.K. based company registered with the Financial Conduct Authority providing management and other services to BML and WTML.

The WisdomTree ETFs are issued in the U.S. by WTT. WTT, a non-consolidated third party, is a Delaware statutory trust
registered with the SEC as an open-end management investment company. The Company has licensed to WTT the use of certain of its own indexes on an exclusive basis for the WisdomTree ETFs in the U.S. The Boost ETPs are issued by BI. BI, a
non-consolidated third party, is a public limited company organized in Ireland. The WisdomTree UCITS ETFs are issued by WTI. WTI, a non-consolidated third party, is a public limited company organized in Ireland.

The Board of Trustees and Board of Directors of WTT, BI and WTI, respectively, are separate from the Board of Directors of the Company. The
Trustees and Directors of WTT, BI and WTI respectively, are primarily responsible for overseeing the management and affairs of the WisdomTree ETFs, Boost ETPs and the WisdomTree UCITS ETFs for the benefit of the WisdomTree ETF, Boost ETP and the
WisdomTree UCITS ETF shareholders, respectively, and have contracted with the Company to provide for general management and administration services. The Company, in turn, has contracted with third parties to provide the majority of these
administration services. In addition, certain officers of the Company provide general management services for WTT, BI and WTI.

2.

Significant Accounting Policies

Basis of Presentation

These consolidated financial statements have been prepared in conformity with U.S. generally accepted accounting principles
(GAAP) and in the opinion of management reflect all adjustments, consisting of only normal recurring adjustments, necessary for a fair statement of financial condition, results of operations, and cash flows for the periods presented. The
consolidated financial statements include the accounts of the Companys wholly owned subsidiaries.

All intercompany accounts and
transactions have been eliminated in consolidation. Certain accounts in the prior years consolidated financial statements have been reclassified to conform to the current years consolidated financial statements presentation. These
reclassifications had no effect on the previously reported operating results.

Foreign Currency Translation

Assets and liabilities of subsidiaries whose functional currency is not the U.S. dollar are translated based on the end of period exchange
rates from local currency to U.S. dollars. Results of operations are translated at the average exchange rates in effect during the period.

Use of
Estimates

The preparation of the Companys consolidated financial statements in conformity with U.S. GAAP requires management
to make estimates and assumptions that affect the reported amounts of assets and liabilities as of the balance sheet dates and the reported amounts of revenues and expenses for the periods presented. Actual results could differ materially from those
estimates.

Revenue Recognition

The Company earns investment advisory fees as well as licensing fees from third parties. Advisory fees are based on a percentage of the ETPs
average daily net assets and recognized over the period the related service is provided. Licensing fees are based on a percentage of the average monthly net assets and recognized over the period the related service is provided.

Depreciation is provided for using the straight-line method over the estimated useful lives of the related assets as follows:

Equipment

5 years

Furniture and fixtures

15 years

Leasehold improvements are amortized over the term of their respective leases or service lives of the
improvements, whichever is shorter. Fixed assets are stated at cost less accumulated depreciation and amortization.

Marketing and Advertising

Advertising costs, including media advertising and production costs are expensed when incurred.

Cash and Cash Equivalents

The
Company considers all highly liquid investments with an original maturity of 90 days or less at the time of purchase to be classified as cash equivalents. Cash and cash equivalents are held primarily with one large financial institution.

Accounts Receivable and Allowance for Doubtful Accounts

Accounts receivable are customer and other obligations due under normal trade terms. An allowance for doubtful accounts is not provided since,
in the opinion of management, all accounts receivable recorded are deemed collectible.

Impairment of Long-Lived Assets

On a periodic basis, the Company performs a review for the impairment of long-lived assets when events or changes in circumstances indicate
that the estimated undiscounted future cash flows expected to be generated by the assets are less than their carrying amounts or when other events occur which may indicate that the carrying amount of an asset may not be recoverable.

Earnings per Share

Basic earnings
per share is computed by dividing net income available to common stockholders by the weighted-average number of common shares outstanding for the period. Diluted earnings per share reflects the reduction in earnings per share assuming options or
other contracts to issue common stock were exercised or converted into common stock.

Investments

The Company accounts for all of its investments as held-to-maturity, which are recorded at amortized cost. For held-to-maturity investments,
the Company has the intent and ability to hold investments to maturity and it is not more-likely-than-not that the Company will be required to sell the investments before recovery of their amortized cost bases, which may be maturity.

On a periodic basis, the Company reviews its portfolio of investments for impairment. If a decline in fair value is deemed to be
other-than-temporary, the security is written down to its fair value through earnings.

Goodwill

Goodwill is the excess of the fair value of the purchase price over the fair values of the identifiable net assets at the acquisition date. The
Company tests its goodwill for impairment at least annually. An impairment loss is triggered if the estimated fair value of the operating reporting unit is less than the estimated net book value. Such loss is calculated as the difference between the
estimated fair value of goodwill and its carrying value.

Stock-Based Awards

Accounting for stock-based compensation requires the measurement and recognition of compensation expense for all equity awards based on
estimated fair values. The Company accounts for stock-based compensation for its employees based on the cost of employee services received in exchange for a stock-based award. Stock-based compensation is measured based on the grant-date fair value
of the award and is amortized over the relevant service period.

Stock-based awards granted to non-employees for goods or services are
valued at the fair value of the equity instruments issued or the fair value of consideration received, whichever is a more reliable measure of the fair value of the transaction, and recognized when performance obligations are complete.

The Company accounts for income taxes using the liability method, which requires the determination of deferred tax assets and liabilities based
on the differences between the financial and tax basis of assets and liabilities using the enacted tax rates in effect for the year in which differences are expected to reverse. Deferred tax assets are adjusted by a valuation allowance if, based on
the weight of available evidence, it is more-likely-than-not that some portion or all of the deferred tax assets will not be realized.

In
order to recognize and measure any unrecognized tax benefits, management evaluates and determines whether any of its tax positions are more-likely-than-not to be sustained upon examination, including resolution of any related appeals or litigation
processes, based on the technical merits of the position. Once it is determined that a position meets this recognition threshold, the position is measured to determine the amount of benefit to be recognized in the consolidated financial statements.
The Company records interest expense and penalties related to tax expenses as income tax expense.

Related Party Transactions

The Companys revenues are derived primarily from investment advisory agreements with WTT and WisdomTree ETFs. Under these agreements, the
Company has licensed to WTT the use of certain of its own indexes on an exclusive basis for the WisdomTree ETFs in the U.S. The Trustees are primarily responsible for overseeing the management and affairs of the WisdomTree ETFs and the Trust for the
benefit of the WisdomTree ETF shareholders and WTT has contracted with the Company to provide for general management and administration of WTT and the WisdomTree ETFs. The Company is also responsible for certain expenses of WTT, including the cost
of transfer agency, custody, fund administration and accounting, legal, audit, and other non-distribution services, excluding extraordinary expenses, taxes and certain other expenses. In exchange, the Company receives fees based on a percentage of
the ETF average daily net assets. The advisory agreements may be terminated by WTT upon notice. Certain officers of the Company also provide general management oversight of WTT; however, these officers have no material decision making
responsibilities and primarily implement the decisions of the Trustees. At March 31, 2015 and December 31, 2014 the balance of accounts receivable from WTT was approximately $23,540 and $17,288, respectively, which is included as a
component of accounts receivable on the Companys Consolidated Balance Sheet. Revenue from advisory services provided to WTT for the three months ended March 31, 2015 and 2014 was approximately $59,346 and $42,609, respectively.

Revenue from advisory fee services provided to BI and WTI for the three months ended March 31, 2015 was approximately $523.

Third Party Sharing Arrangements

The Company pays a percentage of its advisory fee revenue based on incremental growth in AUM, subject to caps or minimums, to marketing agents
to sell WisdomTree ETFs and to intermediaries to include WisdomTree ETFs on their customer platforms.

Segment, Geographic and Customer Information

The Company operates as a single business segment as an ETP sponsor and asset manager providing investment advisory services.
Substantially all of the Companys revenues, pretax income and assets are derived or located in the U.S. The Company maintains operations in Europe through its acquisition of Boost, now known as WisdomTree Europe (Note 11).

Recently Issued Accounting Pronouncements

In February 2015, the FASB issued Accounting Standards Update 2015-02 (ASU 2015-02) Amendments to the Consolidation Analysis, which
amends the consolidation guidance in ASC 810. The standard eliminates the deferral of FAS 167, per ASC 810-10-65-2(a), which has allowed certain investment funds to follow the previous consolidation guidance in FIN 46 (R). The standard changes
whether (1) fees paid to a decision maker or service provider represent a variable interest, (2) a limited partnership or similar entity has the characteristics of a VIE and (3) a reporting entity is the primary beneficiary of a VIE.
The effective date of the standard will be for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2015 for public companies, and early adoption is permitted. The Company is currently assessing the
potential impact of the adoption of this guidance on its consolidated financial statements.

In May 2014, the FASB issued Accounting
Standards Update 2014-09 (ASU 2014-09) Revenue from Contracts with Customers, which is a new comprehensive revenue recognition standard on the financial reporting requirements for revenue from contracts entered into with customers. ASU
2014-09 is effective for interim and annual periods beginning after December 15, 2016. In April 2015, the FASB proposed a deferral of this ASUs effective date by one year, to December 15, 2017. The proposed deferral allows early
adoption at the original effective date. The Company is currently assessing the potential impact of the adoption of this guidance on its consolidated financial statements.

The Company includes the results of operations of the businesses that it acquires from the respective dates of acquisition. The fair values of
the purchase price of the acquisitions are allocated to the assets acquired and liabilities assumed based on their estimated fair values. The excess of the fair value of purchase price over the fair values of these identifiable assets and
liabilities is recorded as goodwill.

Subsequent Events

The Company has evaluated subsequent events after the date of the consolidated financial statements to consider whether or not the impact of
such events needed to be reflected or disclosed in the consolidated financial statements. Such evaluation was performed through the issuance date of the consolidated financial statements.

3.

Investments and Fair Value Measurements

The following table is a summary of the Companys investments:

March 31, 2015

December 31, 2014

Held-to-Maturity

Held-to-Maturity

Federal agency debt instruments

$

21,629

$

13,990

The following table summarizes unrealized gains, losses, and fair value of investments:

March 31, 2015

December 31, 2014

Held-to-Maturity

Held-to-Maturity

Cost/amortized cost

$

21,629

$

13,990

Gross unrealized gains

146

112

Gross unrealized losses

(259

)

(386

)

Fair value

$

21,516

$

13,716

The following table sets forth the maturity profile of investments; however these investments may be called
prior to maturity date:

March 31, 2015

December 31, 2014

Held-to-Maturity

Held-to-Maturity

Due within one year

$



$



Due one year through five years

9,380

1,409

Due five years through ten years

825

350

Due over ten years

11,424

12,231

Total

$

21,629

$

13,990

Fair Value Measurement

Under the accounting for fair value measurements and disclosures, fair value is defined as the price that would be received to sell an asset or
paid to transfer a liability, or the exit price, in an orderly transaction between market participants at the measurement date. The accounting guidance establishes a hierarchy of valuation techniques based on whether the inputs to those valuation
techniques are observable or unobservable. Observable inputs reflect market data obtained from independent sources, while unobservable inputs reflect the Companys market assumptions.

These three types of inputs create the following fair value hierarchy:

Level 1Quoted prices for identical instruments in active markets.

Level 2Quoted prices for similar instruments in active markets; quoted prices for identical or similar instruments
in markets that are not active; and model-derived valuations whose inputs are observable or whose significant value drivers are observable.

This hierarchy requires the use of observable market data when available. The Companys held-to-maturity
securities are categorized as Level 1.

The majority of the Companys acquisition payable of $2,014 is measured at fair value and is
categorized as Level 3. Fair value is determined based on a predefined formula which includes observable and unobservable inputs and is subject to a minimum payout. Inputs to the predefined formula include the contractual minimum payment obligation,
European AUM, the Companys enterprise value over global AUM, and profitability of the European business (Note 11). During the three months ended March 31, 2015, the Company recorded an acquisition contingent payment expense of $257, which
represents the expense accrual for expected payments due to the former Boost shareholders primarily driven by increased AUM from the Companys European business.

Some of the Companys financial instruments are not measured at fair value on a recurring basis but are recorded at amounts that
approximate fair value due to their liquid or short-term nature.

4.

Fixed Assets

The following table summarizes fixed assets:

March 31, 2015

December 31, 2014

Equipment

$

925

$

913

Furniture and fixtures

1,620

1,620

Leasehold improvements

8,800

8,795

Less accumulated depreciation and amortization

(1,192

)

(972

)

Total

$

10,153

$

10,356

5.

Commitments and Contingencies

Contractual Obligations

The Company has entered into obligations under operating leases with initial non-cancelable terms in excess of one year for office space,
telephone, and data services. Expenses recorded under these agreements for the three months ended March 31, 2015 and 2014, were approximately $794 and $826.

Future minimum lease payments with respect to non-cancelable operating leases at March 31, 2015 are approximately as follows:

Remainder of 2015

$

2,440

2016

2,976

2017

2,787

2018 and thereafter

32,414

Total

$

40,617

The Companys prior office lease expired in January 2014. In August 2013, the Company entered into a new
16 year lease agreement. Pursuant to the new lease agreement, the Company received lease incentives which include a deferred rent period and a leasehold improvement allowance equal to $3,223. The Company recorded a receivable of $3,223 due from the
lessor of its new office space related to its leasehold improvement allowance. The balance at March 31, 2015 and December 31, 2014 was $509 which was included in accounts receivable on the Companys Consolidated Balance Sheet.

Letter of Credit

The Company
collateralized its office lease through a standby letter of credit totaling $1,384. The collateral is included in investments on the Companys Consolidated Balance Sheet.

Contingencies

The Company is
subject to various routine reviews and inspections by regulatory authorities as well as legal proceedings arising in the ordinary course of business. The Company is not currently party to any litigation or other legal proceedings that are expected
to have a material impact on its business, financial position or results of operations.

The Company grants equity awards to employees and directors. Options are issued generally for terms of ten years and vest
between two to four years. Options are issued with an exercise price equal to the fair value of the Company on the date of grant. The Company estimated the fair value for options using the Black-Scholes option pricing model. All restricted stock and
option awards require future service as a condition of vesting with certain awards subject to acceleration under certain conditions. Restricted stock awards generally vest over three years.

A summary of options and restricted stock activity is as follows:

Options

WeightedAverageExercise Priceof Options

RestrictedStockAwards

Balance at January 1, 2015

5,330,070

$

1.61

1,513,939

Granted



$



514,116

Exercised/vested

(2,270,064

)

$

0.94

(610,299

)

Forfeitures



$





Balance at March 31, 2015

3,060,006

$

2.11

1,417,756

A summary of stock-based compensation expense is as follows:

For the Three Months Ended March 31,

2015

2014

$2,344

$

2,015

A summary of unrecognized stock-based compensation expense and average remaining vesting period is as follows:

March 31, 2015

Unrecognized Stock-BasedCompensation

AverageRemainingVesting Period

Employees and directors option awards

$

307

0.70

Employees and directors restricted stock awards

$

17,377

1.90

7.

Employee Benefit Plans

The Company has a 401(k) savings plan covering all eligible employees in which the Company can make discretionary
contributions from its profits. For the three months ended March 31, 2015 and 2014, the Company made discretionary contributions in the amount of $391 and $285 respectively.

8.

Earnings Per Share

The following is a reconciliation of the basic and diluted earnings per share computation:

Diluted earnings per share reflects the reduction in earnings per share assuming options or other
contracts to issue common stock were exercised or converted into common stock under the treasury stock method. The dilutive effect of options to purchase shares of common stock and restricted shares were included in the diluted earnings per share in
the three months ended March 31, 2015, and 2014, respectively. 696 and 545 restricted shares were determined to be anti-dilutive and were not included in the calculation of diluted earnings per share for the three months ended March 31,
2015 and 2014 respectively.

9.

Income Taxes

Net operating losses  U.S.

The Company previously generated net operating losses in the U.S. (NOLs). The following table summarizes the activity for NOLs for
the three months ended March 31, 2015:

December 31, 2014

$

(109,839

)

U.S. GAAP pretax income

22,481

State income taxes

(350

)

Income tax differences:

Temporary

(7,940

)

Permanent

(46,143

)

March 31, 2015

$

(141,791

)

During the first quarter of 2014, management determined that although realization is not assured, it believed
that it is more likely than not that its gross deferred tax asset would be realized. Therefore, it released the valuation allowance previously recorded resulting in an income tax benefit of $13,725 on the Companys Consolidated Statements of
Operations and Comprehensive Income in the three months ended March 31, 2014 and a corresponding deferred tax asset on the Companys Consolidated Balance Sheet at March 31, 2014. The balance of the deferred tax asset at March 31,
2015 and December 31, 2014 was $6,040 and $9,490, respectively.

At March 31, 2015 and December 31, 2014, $133,585 and
$101,108 of the NOLs were generated from stock-based compensation amounts recognized for tax purposes at the time options are exercised (at the intrinsic value) or restricted stock is vested (at fair value of the share price) in excess of amounts
previously expensed at the date of grant for U.S. GAAP purposes. These amounts cannot be recognized as a deferred tax asset under U.S. GAAP. In addition, $3,487 of the NOLs are deemed worthless. Therefore, at March 31, 2015, the
Company has no recognized deferred tax assets related to these NOLs.

During the three months ended March 31, 2015, the Company
recognized tax expense of $8,958. During the three months ended March 31, 2015, the Company utilized $3,450 of its deferred tax asset and the Company recorded a credit to additional paid-in capital of $5,158 for the amount of NOLs from
stock-based compensation utilized to reduce taxes payable during the period. In addition, during the three months ended March 31, 2015, the Company recorded $350 of state income taxes.

In the third quarter of 2014, the Company completed a state tax study which resulted in a reduction of its current baseline operating tax rate
in the U.S. from 45% to approximately 38%. The Company reduced the carrying value of its deferred tax asset which had previously been recorded using the higher rate.

A summary of the components of the gross and tax affected deferred tax asset as of March 31, 2015 is as follows:

Stock-based compensation

$

9,761

Deferred rent liability

5,605

Other

371

Total gross deferred tax asset

15,737

Income tax rate

38.38

%

Tax affected

$

6,040

Net operating losses  Non-U.S.

The Companys foreign subsidiaries generated net operating losses outside the U.S. The following table summarizes the activity for NOLs
for the three months ended March 31, 2015:

At March 31, 2015 and December 31, 2014, a deferred tax asset related to these NOLs has
been fully offset by a valuation allowance of $1,105 and $816 respectively.

10.

Shares Repurchased

On October 29, 2014, the Companys Board of Directors authorized a three-year share repurchase program of up to
$100 million. During the three months ended March 31, 2015, the Company repurchased 773 shares of its common stock under this program for an aggregate cost of $14,070. Of these shares, 259 were repurchased to offset tax withholding obligations
that occur upon vesting and release of restricted shares for an aggregate cost of $4,385, and 514 shares were repurchased in the open market to offset new shares issued in connection with employee equity grants for an aggregate cost of $9,685.
$85,930 remains under this program for future purchases.

During the three months ended March 31, 2014, the Company repurchased 312
shares of its common stock to offset tax withholding obligations that occur upon vesting and release of restricted shares for an aggregate cost of $5,426.

11.

Acquisition and Goodwill

On April 15, 2014, the Company completed its acquisition of Boost, a U.K. and Jersey based ETP sponsor, now known as
WisdomTree Europe, as part of the Companys strategy to expand internationally. Under the terms of the agreement, the Company owns 75% of WisdomTree Europe and the former Boost shareholders own 25%. The Company will acquire the remaining
25% ownership interest at the end of four years using a predefined formula based on European AUM at the end of the four year period and will be tied to the Companys enterprise value over global AUM at the time of payout, and affected by
profitability of the European business. No consideration was transferred on the acquisition date. The ultimate payout will be made in cash over two years.

Two shareholders of Boost, who owned 88% of Boost prior to the acquisition, became co-CEOs of WisdomTree Europe and are guaranteed a minimum
payment of $1,757 for their interest if they terminate their employment without good reason or they are terminated for cause. The Company determined that this minimum payment represents consideration transferred and was recognized and measured at
acquisition-date fair value to determine the purchase price. Any future payments made to the co-CEOs in excess of the minimum payments is accounted for separately from the business combination as acquisition contingent payment on the Companys
Consolidated Statements of Operations and Comprehensive Income and represents compensation for post-acquisition services. The obligation to mandatorily redeem the remaining 12% minority shareholders interest in Boost is measured at the fair
value of the amount of cash that would be paid under the conditions specified in the agreement. Any change in the carrying amount of the liability will be recognized as an expense.

During the three months ended March 31, 2015, the Company incurred $6 of compensation expense and $251 of interest expense, which
represents contingent consideration due to the co-CEOs and non-employee shareholders, respectively. These amounts have both been recorded in acquisition contingent payment on the Companys Consolidated Statements of Operations and Comprehensive
Income.

Because the Company is required to redeem the shares from the former Boost shareholders at the end of four years under a
predefined formula, under U.S. GAAP, the Company does not reflect the 25% interest held by the former Boost shareholders in WisdomTree Europe as non-controlling interest (NCI).

The Company recorded goodwill of $1,676 in connection with this acquisition. Goodwill represents the excess value of the purchase price over
the $81 fair value of the net assets acquired, consisting primarily of accounts receivable, accounts payable and fixed assets. While the Company paid no consideration up front to the former Boost shareholders, under the terms of the acquisition
agreement, $1,757 was deemed to represent the purchase price. Goodwill is not expected to be tax deductible.

The following table
summarizes the goodwill activity for the three months ended March 31, 2015:

MANAGEMENTS DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

The following discussion and analysis of our financial condition and results of operations should be read together with our consolidated
financial statements and the related notes and the other financial information included elsewhere in this Report. In addition to historical consolidated financial information, the following discussion contains forward-looking statements that reflect
our plans, estimates and beliefs. Our actual results could differ materially from those discussed in the forward-looking statements. Factors that could cause or contribute to these differences include those discussed below. For a more complete
description of the risks noted above and other risks that could cause our actual results to materially differ from our current expectations, please see Item 1A Risk Factors in our Annual Report on Form 10-K for the fiscal year ended
December 31, 2014. We assume no obligation to update or revise publicly any forward-looking statements, whether as a result of new information, future events or otherwise, unless required by law.

Executive Summary

Introduction

We were the sixth largest ETP sponsor in the world based on assets under management (AUM), with AUM of $56.1 billion globally as of
March 31, 2015. An ETP is a pooled investment vehicle that holds a basket of securities, financial instruments or other assets and generally seeks to track (index-based) or outperform (actively managed) the performance of a broad or specific
equity, fixed income or alternatives market segment, commodity or currency (or an inverse or multiple thereof). ETPs are listed on an exchange with their shares traded in the secondary market at market prices, generally at approximately the same
price as the net asset value of their underlying components. ETP is an umbrella term that includes ETFs, exchange-traded notes and exchange-traded commodities.

Through our operating subsidiaries, we provide investment advisory and other management services to the WisdomTree ETFs, WisdomTree UCITS ETFs
and Boost ETPs, collectively offering ETPs covering equity, fixed income, currency, alternatives and commodity asset classes. In exchange for providing these services, we receive advisory fee revenues based on a percentage of the ETPs average
daily AUM. Our expenses are predominantly related to selling, operating and marketing our ETPs. We have contracted with third parties to provide certain operational services for the ETPs. We distribute our ETPs through all major channels within the
asset management industry, including brokerage firms, registered investment advisers, institutional investors, private wealth managers and discount brokers primarily through our sales force. Our sales efforts are not directed towards the retail
segment but rather are directed towards financial or investment advisers that act as intermediaries between the end-client and us.

$55.8
billion of our AUM are from our U.S. listed WisdomTree ETFs. As of March 31, 2015, we were the fifth largest sponsor of ETFs in the United States based on AUM. As the pie chart below reflects, approximately 60% of our U.S. AUM is concentrated
in European and Japanese equity exposures which hedge the Euro (trading under the symbol HEDJ) or Yen (trading under the symbol DXJ) against the U.S. dollar. The weakening of the U.S. dollar against the Euro or Yen or negative sentiment towards
these two markets may have an adverse effect on our results.

The following charts reflect the U.S. ETF industry flows in total and by broad category:

As the charts above reflect, industry flows were $56.7 billion, which was down from a record setting fourth
quarter of 2014. International currency hedged equity ETFs gathered the majority of the flows followed by fixed income ETFs.

Our Operating and
Financial Results

The following charts reflect the flows into our U.S. listed ETFs:

For the first quarter of 2015, we experienced a record $13.5 billion of net inflows predominantly into two
of our currency hedged equity products, HEDJ and DXJ. Partly offsetting this was $448 million in outflows primarily in our emerging markets product set.

Revenues  We recorded record revenues of $60.1 million in the first quarter of 2015, an increase of 40.1% from $42.9 million in the first quarter of last year primarily due to higher average AUM from new
inflows.



Expenses  Total expenses increased 48.0% compared to the first quarter of last year primarily due to higher incentive compensation due to our record setting inflows in the first quarter. Also included in
the first quarter of 2014 were $2.4 million of expenses related to our European listed ETPs, which were acquired in April 2014.



Pre-tax income  Pre-tax income reached $21.0 million in the first quarter of 2015, an increase of 27.6% from $16.5 million in the first quarter of last year.

Non-GAAP Financial Measurements

Gross margin is a non-GAAP financial measurement which we believe provides useful and meaningful information as it is a financial measurement
management reviews when evaluating the Companys operating results. We define gross margin as total revenues less fund management and administration expenses and third-party sharing arrangements. We believe this financial measurement provides
investors with a consistent way to analyze the amount we retain after paying third party service providers to operate our ETPs and third party marketing agents whose fees are associated with our AUM level. The following table reflects the
calculation of our gross margin and gross margin percentage:

Three Months Ended March 31,

(in thousands)

2015

2014

GAAP total revenue

$

60,141

$

42,920

Fund management and administration

(10,168

)

(9,168

)

Third party sharing arrangements

(283

)

(10

)

Gross margin

$

49,690

$

33,742

Gross margin percentage

82.6

%

78.6

%

Key Operating Statistics

The following table presents key operating statistics that serve as indicators for the performance of our business:

Advisory fees revenue increased 40.5% from $42.6 million in the three months ended March 31, 2014 to $59.9 million in the comparable
period in 2015. This increase was primarily due to higher average AUM from our net inflow levels and higher average fee capture. Our average advisory fee for our U.S. listed ETFs was 0.52% as compared to 0.51% for the same period last year due to
inflows into our higher priced ETFs, primarily HEDJ. Included in the first quarter of 2015 was $0.5 million in advisory fees revenue from our European listed ETPs, which were acquired in April 2014.

Other income

Other income decreased
12.5% from $0.31 million in the three months ended March 31, 2014 to $0.27 million in the comparable period in 2015. We recorded a realized gain on foreign currency we held in connection with our acquisition of Boost in the year ago quarter.

Compensation and benefits expense increased 109.5% from $9.4 million in the three months ended March 31, 2014 to $19.6 million in the
comparable period in 2015. This increase was primarily due to higher accrued incentive compensation due to our record setting inflow levels experienced in the quarter. In addition, we incurred higher payroll taxes due to year-end bonus payments and
employees exercising previously granted equity awards as well as higher headcount related expenses to support our growth. Included in the quarter was $1.1 million in compensation costs for employees associated with our European listed ETPs. Our
headcount was 109 in the U.S. and 136 globally at March 31, 2015.

Fund management and administration

Fund management and administration expense increased 10.9% from $9.2 million in the three months ended March 31, 2014 to $10.2 million in
the comparable period in 2015. Fees associated with higher inflow levels, average AUM and number of ETFs increased, partly offset by lower fees as a result of changing our fund accounting, administration and custody service provider in April 2014.
We also incurred additional costs for our European listed ETPs which were acquired in April 2014. We had 70 U.S. listed ETFs, 57 European listed ETPs and 6 UCITS ETFs at March 31, 2015 compared to 70 U.S. listed ETFs at March 31, 2014.

Marketing and advertising

Marketing
and advertising expense increased 19.3% from $2.6 million in the three months ended March 31, 2014 to $3.1 million in the comparable period in 2015 primarily due to higher levels of print and on-line advertising.

Sales and business development

Sales and
business development expense increased 46.0% from $1.3 million in the three months ended March 31, 2014 to $1.9 million in the comparable period in 2015 primarily due to higher spending for sales related activities.

Professional and consulting fees

Professional and consulting fees decreased 18.5% from $1.8 million in the three months ended March 31, 2014 to $1.5 million in the
comparable period in 2015. In the first quarter of last year, we incurred advisory fees in connection with our acquisition of Boost as well as higher technology consulting fees related to moving our office space.

Occupancy, communications and equipment

Occupancy, communications and equipment expense was essentially unchanged at $0.9 million as compared to the three months ended March 31,
2014.

Depreciation and amortization

Depreciation and amortization expense was also relatively unchanged at $0.2 million as compared to the three months ended March 31, 2014.

Third-party sharing arrangements

Third-party sharing arrangements increased to $0.3 million in the three months ended March 31, 2015 primarily due to higher fees to our
marketing agents in Latin America and to listing our ETFs on a third party customer platform.

Acquisition contingent payment

Acquisition contingent payment expense was $0.3 million in the three months ended March 31, 2015. This represents the expense accrual for
expected payments due to the former Boost shareholders related to our acquisition in April 2014 primarily driven by increased AUM from our European business.

Other

Other expenses increased 8.1% from
$1.1 million in the three months ended March 31, 2014 to $1.2 million in the comparable period in 2015 primarily due to higher general and administrative expenses.

The following table summarizes key data regarding our liquidity, capital resources and use of capital to fund our operations:

March 31,2015

December 31,2014

Balance Sheet Data (in thousands):

Cash and cash equivalents

$

151,701

$

165,284

Investments

$

21,629

$

13,990

Accounts receivable

$

24,600

$

18,176

Total liabilities

$

36,882

$

36,466

Three Months EndedMarch 31,

2015

2014

Cash Flow Data (in thousands):

Operating cash flows

$

16,937

$

9,434

Investing cash flows

(7,661

)

(3,620

)

Financing cash flows

(22,744

)

(5,350

)

Foreign exchange rate effect

(115

)



(Decrease)/increase in cash and cash equivalents

$

(13,583

)

$

464

Liquidity

We consider our available liquidity to be our liquid assets less our liabilities. Liquid assets consist of cash and cash equivalents, accounts
receivable and investments. We account for investments as held to maturity securities and have the intention and ability to hold to maturity. However, if needed, such investments could be redeemed for liquidity. Cash and cash equivalents include
cash on hand and non-interest-bearing and interest-bearing deposits with financial institutions. Accounts receivable primarily represents advisory fees we earn from our ETPs. Investments represent debt instruments of U.S. government and agency
securities. Our liabilities consist primarily of payments owed to vendors and third parties in the normal course of business as well as accrued year end incentive compensation for employees.

Cash and cash equivalents decreased by $13.6 million in the first three months of 2015 to $151.7 million at March 31, 2015 primarily due
to $14.1 million of cash used to repurchase 773 shares of our common stock under our share repurchase program, $10.8 million used for our quarterly dividend and $8.4 million used to purchase investments. Partly offsetting these decreases was an
increase of $16.9 million of cash from our operating activities due to record inflow levels and $2.1 million of proceeds from employees exercising stock options.

Cash and cash equivalents increased by $0.5 million in the first three months of 2014 to $104.8 million at March 31, 2014 primarily due
to $9.4 million of cash flow from operations due to our business results, partly offset by $5.4 million used to repurchase our common stock due to employees vesting in restricted stock awards and $3.5 million used to purchase leasehold improvements
for our new office space.

Capital Resources

Our principal source of financing is our operating cash flows. We believe that current cash flows generated by our operating activities should
be sufficient for us to fund our operations for at least the next 12 months.

Use of Capital

Our business does not require us to maintain a significant cash position. As a result, we expect that our main uses of cash will be to fund the
ongoing operations of our business, invest in strategic growth initiatives, expand our business through strategic acquisitions and fund our capital return program. In the fourth quarter of 2014, we announced a capital return program which includes a
$0.08 per share quarterly cash dividend and authority to purchase up to $100 million of our common stock over three years, including purchases to offset future equity grants made under our equity plans. During the three months ended March 31,
2015, we repurchased 773 shares of our common stock under the repurchase program for an aggregate cost of $14.1 million.

The following table summarizes our future cash payments associated with contractual obligations as of March 31, 2015.

Total

Payments Due by Period(in thousands)

Less than 1year

1 to 3 years

3 to 5 years

More than 5years

Operating leases

$

40,617

$

2,440

$

5,763

$

8,334

$

24,080

Acquisition payable

$

2,014

$

2,014

The Company is required to redeem the acquisition payable, which represents the remaining 25% non-controlling
interest held by the former Boost shareholders in WisdomTree Europe in 2018. The ultimate price for the remaining interest will be determined by a predefined formula based on European AUM at the time of redemption and will be tied to our enterprise
value over global AUM at the time of payout, and affected by profitability of the European business. The payout will be in cash over two years.

Off-Balance Sheet Arrangements

Other
than operating leases, which are included in the table above, we do not have any off-balance sheet financing or other arrangements. We have neither created nor are party to any special-purpose or off-balance sheet entities for the purpose of raising
capital, incurring debt or operating our business.

Critical Accounting Policies

Stock-Based Compensation

Stock-based compensation expense reflects the fair value of stock-based awards measured at grant date and is recognized over the relevant
service period. The fair value of each option award is estimated on the date of grant using the Black-Scholes option valuation model. The Black-Scholes option valuation model includes the input of certain variables that are dependent on future
expectations, including the expected lives of our options from grant date to exercise date, the volatility of our underlying common shares in the market over that time period, the rate of dividends that we may pay during that time and an appropriate
risk-free interest rate. Many of these assumptions require managements judgment. If actual experience differs significantly from these estimates, stock-based compensation expense and our results of operations could be materially affected.

Revenue Recognition

The Company
earns investment advisory fees for ETPs as well as licensing fees from third parties. ETP advisory fees are based on a percentage of the ETPs average daily net assets and recognized over the period the related service is provided. Fees for
separately managed accounts and licensing are based on a percentage of the average monthly net assets and recognized over the period the related service is provided.

Recently Issued Accounting Pronouncements

In February 2015, the FASB issued Accounting Standards Update 2015-02 (ASU 2015-02) Amendments to the Consolidation Analysis, which
amends the consolidation guidance in ASC 810. The standard eliminates the deferral of FAS 167, per ASC 810-10-65-2(a), which has allowed certain investment funds to follow the previous consolidation guidance in FIN 46 (R). The standard changes
whether (1) fees paid to a decision maker or service provider represent a variable interest, (2) a limited partnership or similar entity has the characteristics of a VIE and (3) a reporting entity is the primary beneficiary of a VIE.
The effective date of the standard will be for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2015 for public companies, and early adoption is permitted. The Company is currently assessing the
potential impact of the adoption of this guidance on its consolidated financial statements.

In May 2014, the FASB issued Accounting
Standards Update 2014-09 (ASU 2014-09) Revenue from Contracts with Customers, which is a new comprehensive revenue recognition standard on the financial reporting requirements for revenue from contracts entered into with customers. ASU
2014-09 is effective for interim and annual periods beginning after December 15, 2016. In April 2015, the FASB proposed a deferral of this ASUs effective date by one year, to December 15, 2017. The proposed deferral allows early
adoption at the original effective date. The Company is currently assessing the potential impact of the adoption of this guidance on its consolidated financial statements.

The following information,
together with information included in other parts of this Managements Discussion and Analysis of Financial Condition and Results of Operations, describes key aspects of the market risk to the Company.

Market Risk

Market risk to us
generally represents the risk of changes in the value of financial instruments held in the portfolios of the WisdomTree ETPs that generally result from fluctuations in securities prices, foreign currency exchange rates against the U.S. dollar, and
interest rates. Nearly all of our revenue is derived from advisory agreements for the WisdomTree ETFs. Under these agreements, the advisory fee we receive is based on the market value of the assets in the WisdomTree ETF portfolios we manage.

Fluctuations in the value of these securities are common and are generated by numerous factors such as market volatility, the overall economy,
inflation, changes in investor strategies, availability of alternative investment vehicles, government regulations and others. Accordingly, changes in any one or a combination of these factors may reduce the value of investment securities and, in
turn, the underlying assets under management on which our revenues are earned. These declines may cause investors to withdraw funds from our ETPs in favor of investments that they perceive as offering greater opportunity or lower risk, thereby
compounding the impact on our revenues. We believe challenging and volatile market conditions will continue to be present in the foreseeable future.

Interest Rate Risk

In order to
maximize yields, we invest our corporate cash in short-term interest earning assets, primarily money market instruments at a commercial bank and U.S. government and agency debt instruments which totaled $173.3 million and $179.3 million as of
March 31, 2015 and December 31, 2014, respectively. We do not anticipate that changes in interest rates will have a material impact on our financial condition, operating results or cash flows.

Exchange Rate Risk

As a result of
our acquisition of Boost, we now operate globally and are subject to currency translation exposure on the results of our non-U.S. operations. Foreign currency translation risk is the risk that exchange rate gains or losses arise from translating
foreign entities statements of earnings and balance sheets from functional currency to our reporting currency (the U.S. Dollar) for consolidation purposes. We generate the vast majority of our revenue and expenses in the U.S. dollar and expect
to do so for some time. We do not anticipate that changes in exchange rates, predominantly the British pound or Euro, will have a material impact on our financial condition, operating results or cash flows. Currently, we do not enter into derivative
financial instruments aimed at offsetting certain exposures in the statement of operations or the balance sheet but may look to do so in the future.

ITEM 4.

CONTROLS AND PROCEDURES

Evaluation of Disclosure Controls and Procedures

As of March 31, 2015, our management, with the participation of our Chief Executive Officer and our Chief Financial Officer, evaluated the
effectiveness of our disclosure controls and procedures pursuant to Rule 13a-15(b) promulgated under the Securities Exchange Act of 1934, as amended, or the Exchange Act. Based upon that evaluation, our Chief Executive Officer and our
Chief Financial Officer concluded that, as of March 31, 2015, our disclosure controls and procedures were effective at a reasonable assurance level in ensuring that material information required to be disclosed by us in the reports that we file
or submit under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the rules, regulations and forms of the SEC, including ensuring that such material information is accumulated by and communicated
to our management, including our Chief Executive Officer and our Chief Financial Officer, as appropriate to allow timely decisions regarding required disclosure.

Changes in Internal Control over Financial Reporting

During the quarter ended March 31, 2015, there were no changes in our internal control over financial reporting that have materially
affected, or are reasonably likely to materially affect, our internal control over financial reporting.

You should carefully consider the information set forth in this Report, as
well as the information set forth in Part 1, Item 1A. Risk Factors in our Annual Report on Form 10-K for the fiscal year ended December 31, 2014.

ITEM 2.

UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

Recent sales of Unregistered Securities

None.

Use of Proceeds

Not applicable.

Purchases of Equity
Securities by the Issuer and Affiliated Purchasers

The following table provides information with respect to purchases made by or on
behalf of the Company or any affiliated purchaser of shares of the Companys common stock.

Total Numberof SharesPurchased

Average PricePaid Per Share

Total
Number ofShares PurchasedasPart of PubliclyAnnounced PlansorPrograms(1)

On October 29, 2014, our Board of Directors authorized a three-year share repurchase program of up to $100 million. During the three months ended March 31, 2015, we repurchased 772,636 shares of our common
stock under this program for an aggregate cost of $14.1 million. Of these shares, 258,520 were repurchased to offset tax withholding obligations that occur upon vesting and release of restricted shares for an aggregate cost of $4.4 million, and
514,116 shares were repurchased in the open market to offset new shares issued in connection with employee equity grants for an aggregate cost of $9.7 million. $85.9 million remains under this program for future purchases.

Financial Statements from the Quarterly Report on Form 10-Q of the Company for the quarter ended March 31, 2015, formatted in XBRL: (i) Consolidated Balance Sheets; (ii) Consolidated Statements of Operations and Comprehensive Income
(Unaudited); (iii) Consolidated Statements of Cash Flows (Unaudited); and (iv) Notes to Consolidated Financial Statements, as blocks of text and in detail.

101.INS (2)

XBRL Instance Document

101.SCH (2)

XBRL Taxonomy Extension Schema Document

101.CAL (2)

XBRL Taxonomy Extension Calculation Linkbase Document

101.DEF (2)

XBRL Taxonomy Extension Definition Linkbase Document

101.LAB (2)

XBRL Taxonomy Extension Label Linkbase Document

101.PRE (2)

XBRL Taxonomy Extension Presentation Linkbase Document

(1)

Incorporated by reference from the Registrants Registration Statement on Form 10, filed with the SEC on June 30, 2011.

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this Report to be signed on its behalf by
the undersigned thereunto duly authorized on this 11th day of May 2015.

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